# SDR CALA2017071002126

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2017
- Submitted: July 10, 2017
- Operation: Air carrier
- Aircraft: [N73406](https://openairdocs.org/aircraft/N73406), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30123
- Aircraft time: 48,596 hours, 19,556 cycles
- System (JASC): [5512 · Horizontal Stabilizer, Plate/Skin](https://openairdocs.org/jasc/5512)
- Part: Skin
- Part number: 182A4001
- Condition: Cracked
- Location: Horizontal Stab
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017071002126

## Discrepancy

DURING INSPECTION OF THE LEFT HORIZONTAL STABILIZER LOWER IN SPAR SKIN PANEL, FOUND A CRACK AT HSS 175.5 ABOUT 25.5 INCHES FROM FORWARD L/E SPAR LOOKING AFT.  INSTALLED CATEGORY B REPAIR DOUBLER IAW SRM 55-10-01, REPAIR 11.

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